Ash-ejecting apparatus for gas producers



March 10, 1925.

W. B. CHAPMAN .ASH EJECTING APPARATUS FOR GAS PRODUCERS Filed July 28, 1921 2 Sheets-Sheet l m4, gwueutoz March 10, 1925. 1,528,911 W-. B. CHAPMAN ASH EJEGTING APPARATUS FOR GAS PRODUCERS Filed July 28, 1921 2 SheetsSheet 2 95132;, cum W f? ,4 W 1M Patented Mar. 10, 1925.

WILLmfi CHArMAfi, 0t itpw i tinx;. GASIGiTOIt 1110 HAPMAN EfiGINEER- ING COMPANY, OE MOUNT VERNON; OHIO; 'A 'CDRP'ORATION 'OF'O'HIO;

ASH-bilndiiirb AP1 A3ATUS FOR GAS PRomicERs.

' Apia lic a tion filed my Q8, 1921. S crial fleet 8,18%.

I ,ofii'ci'cvhk g Be it kiioith thati, XVILUAM B. "Clintiiim yefci tizeii emit United st ws; isifding "at N at Y'o'rk, in th coiin 'y 0'13 New Ysrk and State of New Ljo'iyk lfi-i' int-sateen certain new zind ii's'eflil Ash-Eje'cfing A15- jfiu'witii's to'i' Gaf's Piddiieer's, (if it hii thefollo'yvihg is it sp'eeifi'eetibli. I 'One'bbjt 0f the iiivntibfi ism eahvey the Ash lhe'ch'anicttlifi 'i'i'eih iindei iieith the f'ul bed'bf 2t presses-w the space epimannetthat the ash will be ehto'iiia-tieai y and 1111119011111y ie nOVed "zit fztte ycoiiiinnshrate with pl o-diictien, witheuttlle'iiessity (if fihaiiiltfl 'op'fefzitioi l In spiefei'i'ed fbi'ii ithe invention is so ri-oii'stmeted that the HBO-11B r'eshlfs may be olitained independent Of any intiii (if new parts 'of the pfodiici, and this the side Willis ('if'thefpi 'cid icei may-be stittitihiii'y and bi ly s'uc'hfpdits i etated (is die j'iittided dii'fitly th aet tipph the tlsh. In this my "the initial cost bf the efipiifatus is iiihfch' deei'e isech' as Well is the 66st 6i lira-iiiicn'ziiice and'e'peratibh, siihce the expats e is avoided bf ind-tinting the heavy pafts 'of thef'lir'dd icef for ib tittibn. "and pibvidi n'g zidditioniil pdtrei to drive them. Antithei' Objetof the intent-ends to eff'ei-tth'e i eiiibvv'a l df the ash ffdin the spade min-i01- 1-0 the bottom D f the side Walls of the producer, preferably ztfthifthe has 'heii pii'shd iiitti thisfgiitfiii by iiieztns as iihkive 'des'ciibed, in brdei that'the 'opeifzitiqns (if i'eineving the :ish frkiiii iindei'heath the fife hed 6f 2i *stztt ionaiy gas .iji-bd'ucif kind 11-0111 the s ice adjacent thebottoihpf the side walls thet'eo'f; may he cbiijoiiitly perf'ditliicd. v V I i finithei" O'bject istp pi ovide Qffii the s t-i1- 1 mg 0'1 agitation ,of the Bed 'of'ashjvit iii the 15odfl'er t6 bi ezik 'ii'p shy (iliiil fi s "01' the life, and piddii'c'e .iiiiifb'i'iii "bfiditi'on's within tl'ie' 'rbducer stithfiit'the Blast iiiil ipzi'ss p thi-d'ugh t e ash "sa bsteiitisnyumthi'nily thio'u'ghoutthe area of the 13110 iic'cit, 1nd thus pronlo't-e uniforin' c bhibiistidh therein.

1*11111181 obj ect's and advantages of intention Will he in pzilt oh vicns :ind iii piii't spc'ifictuy oised mp1s the esgfipq n i ereinefti ceiitiiiied, i vliich, ttlieii iii 0011- such side Wat is may, V i'izirily the fish pit will Be iltilized to afford a junction i vit-h it-he ziccoinpanying di-awings, dis'eicses at pi'efeii'ed;einbedilneiit of the inventiciii; span embodimen however, is tofbe 6iisi1i1edm1-g1y illiisti iti ve Of its principle. In the dr'zui ings: i

F 1 is it vertical ceiitnal section Of the l'oiivei 11611-1611 (if it gas pi oducer ha v iiig steeigasdsmms suppl conduit 3 i'vill Ordi- 'n'a'nly 1'ead t0 a'tuyr'e116ofl 4 disposed celitrnlly vithin the side Waiis 1. In the 0perzitien'of the pic'duceithe 'poition Of the fuel bed abeve't e leifel indicated approxinmtel by line 5 *ig. 1') will not have been @0111- letely hiirned, while the region within side wen 1 mi beneath 'the lii i, 5 will 013(11- hafilfy be filled with ztsh which has descended biuiiied is cbinpletely as pessible.

The" 'zish pit (If the piied icer in'the pres clit instence is prpvided hy shaping the base Of f'OundatiOn 2 with a top Wall 7 which underlies the side Walls 1 and extends exterior theietb, to' ziii iiiin'u-lzir hie-11 8 of the base 2,

thiis iji'ovidihg' it ti oiigh-shaijed poftign S) ihi'he ash ijit, eitefioi' to the side wells 1,

ind fiOin which the ,zish iiibjdiiced within be Withdrawn. Ordiw'i 'zitei' se'zil fer the iiit'er'iei' of the prdducen the side walls 1 ilifthe pi'esciit cpnsti uction being pievided with :i1'i .:i1inu1m,. downwzti'dlfi -iztending up 10' (Fig.1) Which pmjets intdthe ash pit 6, the a p ireiriinate m ss levels within and imme; the side i ing indicated by lines 11 and 12 2 1? .1 1g. 1) i'e'spe'ctlveijs. I i In accordance with the present invention theash is moved putwrdly from ithin the confines of the producer side walls 1 to the t 'piigh-shaped portion 9 bf the ash pit which lies extei ion thereto,' in such manner thetthe heiivyparts of the producer-may re- Thain stetionar and only such parts being inot'ed as ee-iitribiite directly to the removal 7 of the ash. In the form of the invention illustrated, an ash-ejecting beam 13 is mounted to work under the side walls of the producer, and is out-stroking in its action; thus, as the beam 13 revolves relative to the ash carried within the side walls 1, the ash on the forward side of the beam is forced outwardly under the lip 10'of the side walls into the trough-shaped portion 9 of the ash pit.

In order to avoid the necessity of movement of the heavy parts of the producer, the side walls 1 are supported in fixed position, as by means of pedestals 1 1 (Fig. 1) extending from the foundation 2, and the ash-ejecting beam 13 is rotated at the speed necessary to remove the ash from underneath the side walls at the desired rate. In the present construction, movement is imparted to the ash-ejecting beam 13 through a gear ring 15 substantially concentric with side walls 1 and rotatablyunounted adjacent the lower portion of such walls, as by means of suitable rollers 16 supporting the ring, and further rollers 17, guiding its circular movements. A pinion 18 meshes with the gear ring 15, suitable means (not shown) being provided whereby the speed of rotation of the ring may be adjusted to remove the ash at a rate conformable to the rate of gasification within the producer.

Thus, due to the fact that neither the side walls 1 nor the foundation 2 of the producer need be moved to assist in the removal of the ash, the expense is avoided of providing and maintaining special constructions to permit these parts to rotate, and the removal of the ash is effected by movement of the beam 13 and gear ring 15, which are comparatively light in weight, of low initial cost, and which may be repaired or replaced with much less trouble and expense.

I prefer to dispose the ash-ejecting beam 13 substantially diametrically of the side walls 1, its opposite ends being bent upwardly and joined respectively to the adjacent portions of gear ring 15, and its central portion being provided with a hub 19 which loosely encloses the neck of the tuyere hood 1. Thus the beam 13 is normally supported entirely by ring 15, and runs clear of the neck of the tuyere hood as well as from the ash pit and side walls of the producer; but if the beam 13 should be abnormally displaced laterally the neck of the tuyere hood may act as a stop to maintain it in position, and. if the beam should tend to rise out of position the lip 10 will act as a stop to prevent this movement, as well as the flanges on the neck of the tuyere hood (as shown in Fig. 1) which are disposed above and below, and slightly spaced from the hub 19. As shown in Fig. 2, the outer ends 20 of the beam 13 may be curved to increase its out-stroking efl'ect adjacent the side walls 1. If desired, means may be provided in connection with the beam 13 to prevent the ash from accumulating under the same, downwardly-directed ash plows 21 being provided for this purpose in theform illustrated. These ash plows are inwardly inclined in a forward direction, with the result that when the beam is rotated, their outer surfaces crowd the ash continually toward the outer portion of the ash-pit. Thus the formation of a stationary stratum of ash under the beam 13 is prevented, which layer or stratum otherwise might restrict the opening under the producer side wall to such an extent as to interfere with the removal of ash containing clinkers of large size.

The invention also provides for stirring or agitating the bed of ash by means of one or more stirring arms 22, which are rotatable relative to the ash-bed and project up into the same a substantial distance. from underneath, thus breaking up chnkers within the ash bed, and agitating the same to promote uniformity in its condition, whereby the air blast will pass up through the ash evenly to all parts of the fire-bed. These stirring arms 22 also act to break down any arches which may tend to form between the producer side walls and the tuyere, and thus tend to keep the ash-bed in a condition where the ash may move progressively toward the ash-pit at a regular rate. In the present form the stirring arms 22 are carried by the beam 13 and the outer ones are bent outwardly to work adjacent the side walls 1, at which point the ash-bed usually is most in need of agitation. As appears in Fig. 2, I also prefer to incline the stirring arms 22 forwardly with regard to the direction of motion of the beam 13, whereby the arms tend to urge the ash downwardly to the asl1pit 6, where it may be ejected by beam 13.

The invention also embodies means for re moving the ash from the trough-shaped portion 9 of the ash-pit, preferably of such character that it may be combined advantageously with the ash-ejecting beam 13 and associated parts previously described, to the end that the operations of ejecting the ash from within the confines of side walls 1 and removing it from the trough 9 of the ash pit may be conjointly carried on. One or more scoops 23 are caused to travel along the trough-shaped portion 9 of the ash-nil,

and provided with forward edges :24: which project down into trough 9 and raise the ash up on to a flat shelf 25. These scoops conveniently may be attached to the gear ring 15 so that the rotary motion of this ring serves both to eject the ash from within the producer and remove it from the exterior portion of the ash-pit. As the beam 13 roltii) esteem tates, the portion of the though 9 cor-respondhag; toahy given'p'ositiener the team will be freshly filled With ash; thus if all the scoops 23 \y'e'r'e identical, the ones lohted immediately behind "the ends 20 or b'e'ar'n is, w en remove thehitijor p'oitibn of'the ash. I refer to pick npthe 'ashjshhsthn ti'ally uniformly thr'oii h'odt theehth-e periphery ot the side \vails 1-, bypibvidin;i a

1 number ofsc'o'o'ps 23 sp'ahe'd around the gx'eail-i'ng 15, the scoops which ate located fin-- ther behind the ends "of beam '13, havingj their forward edges projectingprogres sively deeper into the trough Thus the pushed into trough 9 by the right-handportion of the beam 13, as'the sanre appears in Fig. 2.

Thus the ash is removed substfttntially anit'ormly throughout the entire periphery (if the ash-pit After the 'ash has been inked up by scoops 23, it may be reinbve'd 1-mn theirflat shelf-like surfaees 25 by means of "deflecting member 26 located iii the patlrof travel of the scoop and at anangletheretogfinsuch manner that asthe scoo'ps inove successively past such member, the ash carried by their shelves 25 ivill be scraped off and deposited or collected at the desiredpoint, It Will be noted that no parts bf the scoops 23 project in such a Way as to interfere with the motion of these scoopspast the'deflecting iheni ber 26, and thhsthis latter iheinberinay be made entirely firm and rigid as regards both vertical or lateral moveinentsfl The above=described parts of the ash=ejeetingapparatus serve to removethe ash at a uniform rate, which may be'adjusted; however, to conforin to the rate otagasifioat-ion at which the producer is being operated. The stirring arms 22 contiimally agitate theash-bed and assist iiienabling the ash to descend evenly thi'bughoiit the "area of the ash-bed, While the ash-ejeating beam 13 sweeps over the ash-pit in-su'ch a Way to ll lOVQtllB ash gradually out from uhderneath the side Walls of the producer, Where it is picked up by the scoops 23 which operate substantially simultaneoiisly over the entire periphery of the trough-shaped portion 9 of the ash-pit, "lhusthc operation of removing the ash from the producer is accomplished ithout periodic disturbances of the lowing olainis;

iuel hedwvhich "tend to interfere with the ga's-iii'aking operation, the producer may be operated indefinitely Without interruptieiis, such heat-e often required ivlientlie ash isieinovediiiterinittehtly.

In the resent embodiment, the aslrej'e'ctihg; beam 13 is shown as prdvided ivith forivardly-projectingt teeth 13*, hich assist in breaking lip the thhhet underneath the side "walls 1 'of the producer, and also act to opposea too ra id outward movement of the aslr thusanakihg it possible tor thebeain 1a to Y e =rotated contiiiuodsly if desired withoht ton rapid ejectionofthe ash.

The beain '13 and its anus also fiihction to agitate the ash during rotation of the beam; and to push the ash ahead bftlie betHii in sncha way as'to agitate the under part of the firehu through the medium of the ash other words, although i the beaindoes 'not =directly contact with the under part of the fire bed, the ash above the team is pushed as aforesaid'to trahsmit nioti'o'ri upwardly to the under part of the fire bed, With the result that a i-vavelike disturbance travels 'around'the ash-and the under part of the fuel bedjust'ahead of the ashejectin beam; y I

While-tr'specificembodiment "ot the invention hasbeen described, it is obvious that inanychanges may be inade'without depart- 111g froinits pr1ne1p1e,-ns defined in the fol I claiin 1x111 combination, agas producer having stationary side walls; a stationary ash pit andstationary tuyere hood, said side 'nralls having associated therewith a lip projecting; dm'vnivardly into the ash pit to provide a Water seal for the interior of the producer, and means extending into said ivater seal for relnovingash outwardly from under said side Walls and past said lip to the portion of theash pit-exterior thereto.

2. In combination, a gas producer having stationary side Walls, a stationary ash pit ,and tuyere hood, said side Walls having associated therewith a lip projecting downwardly into the ash pit to provide a Water seal for the interior of the producer; and means extending into said Water seal for rcmoving ash outwardly fi'oiir under substantially the entire periphery of said side Walls and past said lip to theeirteriorportion of the ash-pit. I I

8. In combination; a gas producer having stationary sidewalls, a stationary ash pit located. beneath said walls. said side Walls havingassociated therewith a lip projecting downwardly into the ash pit to provide a Water sealt'or the interior of the producer, and means for reinoving ash outwardly from under said side Walls and past said lip to the portion of the ash pit exterior thereto, and additional hie-ans operating concentrilliu cally with the producer for removing the ash from said exterior portion ofthe ash pit.

l. In combination, a gas producer having stationary side walls, a stationary ash pit located beneath said walls, said side walls having associated therewith a lip projecting downwardly into the ash pit to provide a water seal for the interior of the producer, an outstroking ash-ejecting beam mounted to revolve under the side walls of the pro ducer and extending outwardly past said lip, and a device located adjacent the outer end of the beam for revolving the same.

In combination, stationary gas producer side walls, a stationary ash pit located beneath the same, and side walls having associated therewith a lip projecting downwardly into the ash pit to provide a water seal for the interior of the producer, a rotatable ring mounted concentrically of the producer and exterior to said lip, and an outstroking ash-ejecting member connected to said ring and projecting inwardly into the ash pit to move the ash to the portion of the pit which is exterior to the lip.

6. In combination, a gas producer having stationary side walls, a stationary ash pit and stationary tuyere hood, said side walls having associated therewith a. lip projecting downwardly into the ash pit to provide a water seal for the interior of the producer, an outstroking ash-ejecting beam disposed substantially diametrically of the producer, a rotatable gear ring substantially concentric with the producer side walls, said ash-projecting beam having its opposite ends joined respectively to the adjacent portions of said ring and having a center hub loosely enclosing the air tuyere of the producer.

7. In combination, gas producer side walls, a stirring arm extending upwardly a substatnial distance into the ash from beneath said side walls and means for causing relative travel between said stirring arm and said side walls to agitate the body of ash within the producer, said stirring arm being forwardly inclined to urge the ash downwardly.

8. In combination, gas producer side walls, an ash pit located beneath the same, an outstroking ash ejecting beam mounted to work under the side walls of the producer, a stirring arm carried by said beam, said arm extending upwardly a substantial distance into the ash to agitate the body of ash within the producer and means for causing relative rotation between said side walls and said beam.

9. In combination, gas producer side walls, an ash pit located beneath the same, an outstroking ash ejecting beam mounted to work under the side walls of the producer, said beam carrying a downwardly directed ash plow adapted to force outwardly the ash contained within the ash pit underneath said beam.

10. In combination, stationary gas producer side walls, a stationary ash pit located beneath the same having a portion disposed exterior thereto, means for moving ash from within the confines of said walls to the portion of the ash pit exterior thereto, and means actuated by the same members as said ash moving means, for removing ash from said exterior portion of the ash pit.

11. In combination, stationary gas producer side walls, an ash pit located beneath the same having a portion disposed exterior thereof, a gear ring mounted substantially concentric with said side walls, adjacent the bottom thereof, and means carried by said gear ring for removing ash from said exterior portion of the ash pit.

12. In combination, stationary gas producer side walls, an ash pit located beneath said walls adapted to provide a water seal for the interior of the producer, means for moving ash outwardly from under said side walls to the port-ion of the ash pit exterior thereto, a gear ring mounted substantially concentric with said side walls adjacent the bottom thereof, and means carried by said gear ring for removing ash from said ex terior portion of the ash pit.

13. In combination, stationary gas producer side walls, an ash pit located beneath said walls adapted to provide awater seal for the interior of the producer, a rotatable gear ring mounted substantially concentric wit-h said side walls adjacent the bottom thereof, an outstroking ash ejecting beam mounted, to revolve under the side walls of the producer and joined to said ring and means carried by said ring for removing ash from the portion thereof exterior to the producer side walls.

14:. In combination,"stationary gas producer side walls, an ash pit located beneath said walls adapted to provide a water seal for the interior of the producer, a gear ring mounted substantially concentric with said side walls adjacent the bottom thereof, an outstroking ash ejecting beam extending substantially diametrically beneath said side walls and having its opposite ends joined to said ring, said ring also carrying a scoop projecting into the portion of the ash pit exterior to the side walls to remove ash from such portion.

15. In combination, stationary gas producer side walls, an ash pit located beneath said walls adapted to provide a water seal for the interior of the producer, a gear ring mounted substantially concentric with said side walls adjacent the bottom thereof, an outstroking ash ejecting beam extending substantially diametrically beneath said. side walls and having its opposite ends joined to a trough shaped portion, ascoop having an said ring, said ring also carryinga plurality of. scoops extending 1progres'sively deeper into the portion of the ash pit exterior to the side walls to remove ash therefrom in successive stages. 5

16. In a gas producer, an ash pit having inclined forward edge projecting thereinto and a fflat shelifadapt'ed to carry ,ash picked up by such edge, means for moving said scoop along said trough-shaped portion, and a stationary deflecting member located in the path of :travel' or the scoop liavi'ng a fixedfisweep adapted to push ash laterally from on said shelf. t t

17 In combination a gas producer having stationary 'si'dewalls, a stationary ash pit located beneath the same having a trougl1-shaped portigonextefior to said walls, a rotatable gear ring mounted. siibs'tantially concentric with the producer "side walls and adjacent the "bottom thereof, an outstroking ash ejecting beam mounted 'torevollve under said side walls and having its opposite ends joined to, said ring, said "ring alsoca'rrying a plurality of ,scoops extendinginto the-portion of the ash pit exterior to t-h'egs'ide walls to remove ash therefrom in successive stages and a deflectingi'nemher located in the path of travel or said scoops adapted to remove ash laterally therefrom.

18. In combination, gas producer side Walls, an ash-ejecting beam adjacent the bottom of the walls, a stirring arm extending from said beam upwardly a substantial distance into the ash from beneath said side walls and means for causing relative travel" between said stirring arm and said side walls to agitate the body of ash within the producer. 1

19. In combination, gas producer side walls, an ash pit located beneath said wallshaving an annular trough-shaped portion disposed exterior thereto, and rotarymeans exterior to the producer walls torremoving ash from points around the periphery of said trough-shaped portion.

20. In combination, stationary gas producer side walls, an ash-pit located beneath said walls having an annular portion dis-\ posed exterior thereto, means acting continuouslybeneath said side walls for removing the ash outwardly fromunderneath the same to the portion of the ash-pit exterior thereto, and additional means operating continuously at substantially all points around said exterior portion of the ash-pit for removing ash therefrom.

21. In combination, stationary gas producer side walls, an ash-pit located beneath said walls having an annular portion dis posed exterior thereto, means for continu-' ously' stirring the ash within said side walls,

means acting continuously beneath said side Walls for removing the ash outwardly from 23. In combination a gas producer having stationary sidewalls, a stationary ash pi t located beneath said walls adapted 'to provide a water seal for the interior or the producer, ian 'outstroking ash-ejecting beam mountedto revolve under the side walls of 3 the producer, and means operating in the portion of the ash pit which is exterior to the'side walls, to pick up and discharge ash from points in the ash pit which are intermediate the active portions of the beam.

24. In combination agas producer having stationary side walls, an annular stationary ash pi t' located adjacent .the bottom of said sidewalls andproviding a watergseal for the interior ofthe producer, meansoperat ing evenly all around the producer for torcing ash underneath said side walls, and means operating evenly all aroundth-e por tion of the ash pit which is exterior to the producer walls, for picking up the ash located in the pit.

'25. In combination, stationary producer side walls, a stationary ash pit located beneath the said side walls having associated therewith a lip projecting downwardly into the ash pit to provide a water seal for the interior of the producer, an ash-ejecting member extending substantially radially of the producer and located beneath said water seal, but having its ends projecting upwardly above the outward portion of the water seal, and means connected to the ends of said member for actuating the same.

26. In combination, a gas producer having stationary side walls, a stationary ash pit and tuyere hood located beneath said walls, said side walls having associated therewith a lip projecting downwardly into the ash pit to provide a water seal for the interior of, the producer, an annular ash carrier located adjacent the outer portion of the ash pit and adapted to support the ash removed from the ash pit, means for rotating said carrier concentrically with the producer,

means for removing ash from the ash pit to said carrier, and a deflecting member located in the path of travel of said carrier for sweeping the ash therefrom.

27. In combination, stationary gas producer side walls, revolubly mounted stirring arms extending upwardly a substantial distance into the ash from beneath said side walls, a tuyere hood disposed substantially centrally of the producer, one of said stirring arms operating in a path adjacent the tuyre hood and another of said stirring arms operating in a path adjacent the side walls of the producer.

28. The combination set forth in claim 27, wherein said stirring arms are carried by an ash-ejecting beam working under the side walls of the producer.

29. In combination, a gas producer having stationary side walls, a. stationary ash pit located beneath said walls, said side walls having associated therewith a lip projecting downwardly into the ash pit to provide a water seal for the interior of the producer, an outstroking ash-ejecting beam mounted to revolve under the side walls of the producer, said beam being spaced from the bottom of the ash pit, and means for maintaining a loose condition of the ash underneath said beam.

30. In combination, a gas producer having stationary side walls, a stationary ash pit located beneath said walls, said side walls having associated therewith a lip projecting downwardly into the ash pit to provide a water seal for the interior of the producer,

an outstroking ash-e ecting-beam mounted to revolve under the side walls of the producer. said beam being spaced from the adjacent above-mentioned parts of the producer, and means disposed outwardly of said lip for supporting said beam and for rotating the same.

31. In combination, a gas producer having an outstroking ash-ejecting beam disposed adjacent the bottom of the producer side walls, means for producing relative rotation between said beam and the contents of the producer, said beam carrying forwardly di rected toothlike projections adapted to engage the ash and prevent too rapid outward movement thereof.'

32. In combination, a gas producer having an outstroking ash-ejecting beam disposed adjacent the bottom of the producer side walls, means for producing continuous relative rotation between said beam and the contents of the producer, said beam carrying forwardly directed toothlike projections adapted to engage the ash and prevent too rapid outward movement thereof.

In testimony that I claim the foregoiin I have hereunto set my hand this 8th day of July, 1921.

WILLIAM B. CHAPMAN 

